What you quoted is all done in-game. A DDOS attack is done outside of the game. I believe you fail to understand what a DDOS attack is.
The second part of your post confuses me as well, because the reason I decided to bring it up is because it was mentioned by someone who just joined the bracket recently - in June. I'm not sure if you device can not view images, but I provided a SS (Screenshot) of a new player who recently joined the bracket talking about it. As far as I am aware, patch 5.3 was not last month.
To be fair, I really do not fully understand how a DDOS attack works, my point being it is a shame we are having to deal with this bullshit because of players in the bracket.
And once again you are avoiding the second part of my statement. I will make myself crystal clear this time.
No where in your screenshot does it specifically say they anything about "DDOS". Your screenshot is extremely vague, especially coming from an account that only has 30 posts and recently made, it is hard to give you any benefit of the doubt. And if we are going just off of credibility (as your screenshot basically says absolutely nothing), let me give my input.
Last summer in 5.3 we had the same issue with people being unable to play due to DDOS in quite a few premades. I mentioned in my original post that "everyone who has played 19s through 5.3 that is involved in the community should be aware of who it is by now". I believe i am a fair and kind person, but in this case i will call the player out by name in hopes to solve this before the tournament. Barborous/Sqooshi/Purloinersgf whatever you may know him by at this point... To be honest, I am in full belief that Cptdikpunch is either Sqooshi/Uraflamer who i believe are banned from TI? Correct me if im wrong mods.
So once again, since your screenshot shows absolutely shit all about DDOSing anyone, i find it very ironic that the culprits of last summer's ddosing events would accuse ANYONE else of DDOSing. And as i said, if we are just going off credibility in the community, my voice travels much farther than yours. So let me bring out my closing statement...
Last night in our preparation games for the tournament we played "This Sunday Night", the guild that you are accusing with no evidence, just going straight off credibility (which you have very very little). Not only have I played these guys, but i have talked to 3-4 members of their guild, they are very respectable players/people. Unfortunately in our second game of the night against them, close to 15 minutes in for anyone who was watching, our paladin was D/Ced from the game. Now how ironic is it that immediately after the game, Koncentrate's connection was 100% fine and who other than sqooshi confronts our paladin saying how unfortunate that he rage quit the game, and asked him to play paladin for their premade team....
As i said, since we are just going off of credibility, my voice travels much farther than yours. If it were me handling the DDOSing situation to answer your question, i would not allow those players to participate in the tournament.
It is really a fucking shame that every time something great arises in this community, the same culprits arrive to tear it down again and again