He wouldn't all of a sudden become "low tier", and his cancels certainly wouldn't become useless. Look at other properly designed cancel characters like Heavy Weapons, Tanya, Shirai Ryu, Marksman, Broodmother, Raiden, Tremor, etc. Even with -5 cancel nerf to his block advantages, he'd still be the best rushdown variation for Predator and have strong offense.
What HQT's Plasma Cancels currently do:
- Allow him to hit confirm off almost any normal or string
- Give him great meterless damage and combo conversions off almost any normal or string
- Builds him extra meter
- Allows him to create many staggers and mindgames on block that Predator normally wouldn't be able to do
- Makes a lot of his full combo punishable strings safer on block
- High plus on block offense
What HQT's Plasma Cancels would do AFTER the block cancel nerf:
- Allow him to hit confirm off almost any normal or string
- Give him great meterless damage and combo conversions off almost any normal or string
- Builds him extra meter
- Allows him to create many staggers and mindgames on block that Predator normally wouldn't be able to do
- Makes a lot of his full combo punishable strings safer on block
- High plus on block offense
- Less plus on block offense
The 6F D+1 is more for Predator's other variations and his general move set. But it'd probably be a little too much for HQT. Hence why that variation needs to be normalized like how Summoner and Kobu Jutsu were.
The slight buff to EX Up Plasma is to make it better than his normal Up Plasma anti-air by 1 frame and make it worth using meter for. Currently the EX Up Plasma is 6F in the game and even then, it doesn't anti-air as consistently against a majority of the cast as one would think.