I suspect the anchor requirement is against tornados. The split anchor helps wood flex due to humidity.
Simpson makes some quite amazingly engineered products. I have used that anchor in concrete, and you really, really don't ever want to remove one. It is much easier to design a different anchoring system around another location. Those were used on our deck, and solid does not begin to describe them. (One hole was mis-located/drilled...)
We use the two part glue and glue gun/dispensers with some frequency now that we own the dispensers to do it. (Yes, we have more than one for different types/brands.) I personally prefer to use the ones that come as an inner/outer two part system in a standard caulking cartridge, as I can then use my air powered caulking gun, but the downside is that you need to use something close to an entire 14oz cartridge at a time (an hour or two). It beats trying to hand mix epoxy and filler, especially as you get to high solids mixes. BTDT...
All the best,
Peter