that is the embassies qualifications and has nothing to do with immigration and the Visa once it is approved.
The embassy give the approval based on their own rules.
Thai immigration follows the specs of the visa duration and entry single or multiple etc.
2 different things.
** as stated the only time further qualifications will be needed is if you try and do an extension in country,** otherwise the multientry is just that.
I have been through the immigration training on this visa myself.
Its current configuration is as stated.
I personally believe this visa will change drastically in configuration, Qualifications and implementation in the coming months, but that is an opinion only.
Yes, once this visa is issued, it is a 5 year multientry visa regardless of the length of the program you are approved for.
The idea would be to encourage you to return again over the 5 yrs.
The only exception is that if you intend to do an incountry extension, you will have to qualify again for finances and possibly courses, (that is unseen yet).
As well as the extension fee of 10k.
It would make no sense to extend in country, just leave and reenter requires nothing.
If you qualify get it NOW before they tighten the qualifications.