He's better than Smith, but Koskinen has been better this year, easily.
I wouldn't trade 2 first in this deal. Not even close. I wouldn't be happy about trading a single first in that deal to be honest. No interest in Chairot at the rumored cost to acquire.
Let's be real here, Allen for Koskinen 1 for 1 would be a good move for Montreal. They get a goalie that can do what Allen has done this year, and they get to let him walk at the end of the year. If the Oilers make this deal, they get another backup goalie, albeit one who has been a starter in the past, but they get that guy for 2 years instead of having his cap space and contract spot open up this fall. Could Montreal get a mid round pick for Allen this summer? I'm not so sure.
Mike Smith could be a smarter move for Edmonton, so they still have only one guy signed for next year and not two and still have a chance to upgrade the starter spot, but Montreal shouldn't do that as the guy is 40, injured constantly, and has another year on his deal. It goes against the real reason Montreal should do this deal at all - dumping Allen.
Counter offer - trade Chairot to someone else for a 1st if you can get it, we'll swing back at the deadline if you haven't yet. Take out any marquee prospects or picks. Jake Allen for Mike Smith and a 4th round pick. 4th round pick becomes a 3rd if Edmonton wins a playoff round and Allen appears in at least 3 games in that round.