I still don't understand what "Strict Anal Play" is. My Man and I are in a D/S relationship and have anal sex regularly, but I don't know what the OP is trying to relate.
"Strict Anal Play" is "only" during "foreplay?" We don't "do foreplay and then the Main Event" Sex starts from the first kiss, the first look, the first touch and we put oral, PIV, manual, toy play where ever and when ever we want during our sex. Anal "play" is used during oral, with him using a plug or his hand or a set of beads on me, (and even occasional light rimming, if nothing else has touched there, to bring down bacteria) and also we often finish "sex" with DP, with a dil plus anal with his penis. If we want to go back and do something else (as I often have more orgasms during anal he may want to go down on me again) we do a quick but through clean up of his penis and hands and my bottom and then we move on to other things.
We don't have an order we do things in, although it's best if I have my first orgasm first, as I will have more as we keep playing. I don't actually understand the concept of "foreplay" all that much, as to us, oral, manual and any anal play is just as fun, sometimes more fun, than PIV sex. We have even "forgotten" to have PIV intercourse at times, because we got caught up in other things, and both got off and then fell asleep or got up for the day, depending on when it is.
The only thing we don't do is anal play for him. He doesn't enjoy anal stimulation, and I honestly have no desire to do it to him (although I think I could learn to like it if HE did) but aside from that, it happens for me, with him as the penetrator, frequently.
I still need clarification of the meaning of the phrase. Sorry.