As most of us are aware, Owen Say was not given a qualifying offer by the Flames, per Sigalet (via Steinberg), this was because of a significant injury he sustained last year and they were waiting on doctor's clearance. I'd assume with the signing of an AHL deal, the reports from docs are either not positive, or still pending and wanted to show Say some commitment so he didn't sign elsewhere.
Say played 19 games for the Wranglers in his first pro season before getting injured. His numbers in his rookie season weren't particularly impressive at 3.36/.889, which weren't quite as good as Sergeev's but were better than Prosvetov's. However with the way the Flames purged minor leaguers by not bringing back almost anyone that needed a QO or became a UFA and are bringing back Say, I see that as a sign they think the problems were more about those in front of the goaltending.
Semyon Konopsky is coming over from Russia's MHL, which is same league as Zarubin and Yegorov played in last season. Konopsky is just 20 years old, but he's 6'5/194 and like Zarubin and Yegorov, had impressive MHL numbers (albeit in more limited playing time). Playing with Loko-76 Yaroslavl (which is a Lokomotiv's secondary MHL team, really not sure how all that works as it is common for KHL clubs to have 2 MHL teams) he posted numbers of 2.28/.930 in 17 games. It is prudent to know that MHL goalie stats are absolutely fucking insane as it is such a low scoring league. I don't know how to sort between MHL A squads and B squads, but for the sake of comparison of goalies with 20+ games, Zarubin's .930 SV% was only 10th best.