Seeing as I finally got Lyse Teria Cr last week, I'm a bit saddened by this change, but it's for the best. She's stronger than Zatman and was an absolute beast in ELO. Montana takes it on the chin for awhile, but that can be fixed with a decent 3* to replace her in a later card release.
Losing Zatman and Alec is great! Uppers already have Frankie Hi, who's a perfect filler (although weaker) in most Uppers decks. Alec is a big loss for Rescue, though, leaving only Ghoub and Kerry as heavy hitters. It'll force a big change in how they're played. I'm looking forward to seeing new clans (Junkz, Sarkhom?) enter the top 3. Seems like Bangers and Pussycats will trade bans, though.
I don't think taking out LT would weakened Montana that much because not everyone have her anyway, and at least argument about her and ELO would stop.
On the other hand both Rescue and Uppers will have some problem now. Losing Alec and Zatman would create a huge gap in both clans strategy.
Good for me I don't play ELO So I don't need to worry about it.