I absolutely agree with Richard. DRS is one of the few things i wouldn't have touched, it was perfectly balanced imo. It allowed good cars that had a bad qualy to have a chance at coming back and having a chance to win by the end of the race, and made very close races; not to mention that if you were leading a pack of cars you needed to think about what to do: "do i try to catch that lapped car? do i let myself be overtaken by other cars and then get back in front in the next few laps?"
Right now, qualifying on p1 gives you a 90% chance of winning, at worst. You just need to pull away on the first two laps and then it's a gg (unless your strat sucks). And even if other drivers catch you it doesnt really matter, because DRS is almost useless and people will have used much more boost than you, so in the end you'll just pull away anyway. It's almost like having wet races 24/7, except it's not always raining.
Lower levels may have suffered with the previous DRS power, but that's why they're lower levels: they need to keep working till they reach max level (plus its not like lower levels have more chances to win now). And I am so sure that literally no one at level 20 will defend this DRS nerf unless they want easy wins just by getting a good qualy rng.
tl;dr: p1winslol, lower levels wont have more chances to be close to the top than they used to, races are the same as wet races now aka wayyy more boring. I'd say that's pretty concerning.