In countries with consumer law, no. For example, where I live (Australia), it's absolutely unambiguously illegal to mislead the consumer. It's pretty obvious to everyone that putting "BUY!" in 72pt font and then a tiny "...a limited-time license" somewhere else on the page is misleading, as the word humans use for that is "rent", and therefore it would be false advertising.
In countries with consumer law, no. For example, where I live (Australia), it's absolutely unambiguously illegal to mislead the consumer. It's pretty obvious to everyone that putting "BUY!" in 72pt font and then a tiny "...a limited-time license" somewhere else on the page is misleading, as the word humans use for that is "rent", and therefore it would be false advertising.