Boss refresh seems to have turned into bosses ignored. So many games I've played people don't even bother with them. Point reduction/placement changes makes them not worth the effort.
I actually had one game where we trip capped a team and didn't bother with bosses at all while they kept pushing back and eventually took a base back. At this point there were so many bosses in play that you couldn't walk out of either armory or the fortress (this was on Darkstar) without getting mowed down in less than a second. Wraith bosses on both sides firing all over the place, a mantis, a couple warthogs driving around, a knight in colony, ect. The game basically crawled to a standstill while both teams tried to weed out some of the bosses. It was pretty funny actually.