Toto has been a staple of the soft AC format since the format's inception in the early 80's and even now. As far as Glen Campbell goes, some of the broadcast "traditionally-based" soft ACs are refusing to air his music anymore, including our local "soft AC" here, WEZZ-FM "Easy 97.3" (why that is the case is beyond me...after all, Birmingham is in the south, and we're no strangers to country music). I do realize that Glen Campbell is more of a crossover artists (country and pop), but if anyone assumes that his music doesn't "fit" within a soft AC format, I'd like to point your attention to IheartRadio's "Sunny" station, which airs Campbell's music on a regular basis.
Some of those tracks on Seabreez are more standards in nature, but then again...that is to be expected since the station is being done by the Breez, which is an easy listening/beautiful music station. I imagine some of the Breez's material overlaps with Seabreez's since it is programmed by the same people. I'm not much on the standards fare (at least mixing it with soft AC), but I don't take issue with it as long as there's not a lot of it. One has to remember that the original soft AC format was comprised of some adult standards material, although sparingly, so it's not unheard of to air standards in a traditionally-based soft AC format. For instance, I can remember hearing many soft AC stations in the mid to late 80's airing Johnny Mathis' music, which definitely falls more along the lines of adult standards.