I think 2 char per account is the sweet spot.
realistically speaking, solo players will get super-shafted by the 1 char-per-account rule. but small guilds might have some troubles as well, when not all the members are online 24/7
No, I like the one char per account system very much. In MO1 I used five subscribed accounts for a short time and had four characters on each account. A standard problem of players in guild lead or alliance lead.
StarVault already increased the primary points in the profession area to 1200 and I hope to get even more. The issue of "one profession per character" which we had in MO1 is already solved when a number of skills changed from primary to secondary. And we have the 70 points system in the crafting skills (armor, weapon, bow, shield). Both helps to be able to run two professions on the same character. With 1500-1800 primary points this would become even better.