What about stopover passengers on Qatar Airways?

Who is going to bother applying for a visa for a night's stay in Doha. Most people would end up deciding to just do the transit and not visit at all.

If Qatar thinks this is going to make any of the 33 offer visa on arrival to Qataris, they are dead wrong. The only losers out of this will be a handful of people who come and go on tourist visas, and the Qatari tourism economy.