Talking about Team Deathmatch in particular. It can be really frustrating if you get teleported into the enemy team straight away and don't have the time to preserve your copied skill. If you play a build like elemental sword you are literally useless without your copied skill (well you can still strip i guess) which means you may aswell go straight afk right there.
I would like to suggest that stalkers can use preserve while still in the base on Team Deathmatch or better yet, give them a permanent preserve while in BG altogether. Because a dispel from a professor might just end your fun right there aswell. Soul Linkers are so rare to see in BGs so rogue spirit isn't really an option either.