Yeah, Tribal Striker not triggering is definitely a bug. I'll have to see if I can replicate that. A log file - or being able to clearly replicate it - is generally a good way to a fix. One suggestion: Did you not kill a follower? I don't think it triggers on obstacles or constructs, only on followers, and the card text may not reflect that. That is obviously a bug.
Also yes, the attack situation: You're not the first person to suggest this but it is a major change. I am pretty happy with the way it plays right now but was planning on trying that out to see if how that feels. But right now there's more important things to deal with first.