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I'd call that a push pull output.

Totem Pole OTLs like the Futterman look a little like this.

Looks sort of like an SRPP circuit. But if so it's performance could be improved by a better CCS for the bottom tube.

I would have considered making this differential with the other phase output. But I would have the input circuit set up as differential as well- everything to increase the CMRR. By doing so, even ordered harmonics are cancelled, which results in a cubic non-linearity rather than a quadratic non-linearity. In this way, distortion harmonics fall off at a higher rate since distortion is compounded less from stage to stage. Since the 3rd is treated by the ear much the same way as the 2nd (in that its innocuous) the 'sound' would still be smooth, as with no feedback the inherent distortion would be a significant 3rd harmonic which could easily mask succeeding orders.

So IMO/IME this circuit leaves a fair bit of performance on the table.

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