No, not really. There are many RPGs around where PCs can do more than one non-instantaneous spell at a time.
But it WAS a selling point...its why I bought into 5E

I see your point, it just varies some from table to table.
Game on!
No, not really. There are many RPGs around where PCs can do more than one non-instantaneous spell at a time.
Sounds like an excellent time to perform a tactical retreat. Come back later when buffs run out.
If you want to be powerful, you have to take the powerful spells. This is like complaining that the fighter with the short sword does less damage than the fighter with the longsword. If you want to do more damage, you have to wield the longsword. If you want to be a powerful wizard, you have to use the most powerful spells.
Pathfinder is still available if for those who want to track 12 different buff effects and spend 20 minutes recalculating something's stats after a mass dispel in the middle of a fight. I dont want PC's to have that capability, because then it devolves back into a magical buff arms race.
I see your point, it just varies some from table to table.
Game on!
First off, it's not complaining. It's observing. Second, there is only ONE powerful first level wizard spell in 5E. The rest are mostly so so at best.
Wow. I can do 10 points of damage with Magic Missile, or the Rogue can do 10 or more points of damage (13 with two weapon) with his normal attack most rounds, encounter after encounter after encounter. Sure, Magic Missile autohits. zzzzzzzzzz
At low level, spells are rare. They should shine.
Shield is nice. It helps a lot. But it doesn't do much towards contributing to the party in a fight.
Tasha's Hideous Laughter is ok. The save every round, though, means that the wizard gives up his action and a spell slot so that a foe can lose his action and be prone and lose an action. For usually a single round.
This is not very impressive. The wizard sets a foe up with this and it might not help much because the other PCs are busy elsewhere. Even if they get to attack him, they might have hit anyway. He not only gets a save once a round, but he also saves every time your allies hit him. So if anyone hits him before his first turn in the initiative comes up, he might be back up on his next turn.
It's an ok spell and it is probably the second best spell at first level for a wizard. Yawn.
Note: I'm not really talking about out of combat spells like Find Familiar.
To me, the easiest answer is to allow the PCs to use more than one concentration spell at the same time. That way, the spell casters can do stuff like Web and Hold Monster and a few others on the real tough foes and feel like they are contributing because it's not just monster autosave every spell that fails. It also requires the least number of changes to the rules.