I'm a long-time user of Topping DACs (of which I have two) and cannot complain about their drivers which, for my devices at any rate, are created by Thesycon – not slouches when it comes to audio interfacing.
The only valid reason to actually use ASIO in a domestic context is to send pure DSD (i.e. not DSD over PCM) to the device. Now I have never read the ASIO protocol in depth but I am not at all sure it supports an exclusive mode in the same sense that WASAPI does, the reason being that ASIO is, by design, to meet professional needs to route this device into that device and play the whole lot at a different sampling rate through yet another device etc. etc. etc.
IME the supplied drivers do exactly what they are supposed to - the ASIO mode works as it ought but is only needed if you are not happy using DSD over PCM. But you do not get the exclusive behaviour of WASAPI. It appear to me that if you want the exclusive behaviour of WASAPI, you will have to sacrifice the use of pure DSD in lieu of DoP, which sounds no different but does not support silly-high DSD rates.
p.s. I have no issues with MC not releasing the audio playback device on exit.
p.p.s. there's obviously no accounting for machines that have drivers for other devices (or the remnants thereof) installed.