It is stingy, I think with weddings there comes an responsibility to cater it adequately or change the parameters of the wedding to suit the budget. You can do things like change to a mid-morning service and then just provide a light lunch and time an evening function if you want to do that for later in the evening allowing time for guests to have a meal before that goes ahead. Or cull the guest list, you don't have to invite everyone on the planet. Even then, there should be provision for some food as nibbles if an evening function is put on, it's not being a responsible host to have a function with alcohol involved and not provide something to mop that up. It's easy enough to time things so it's clear an meal won't be provided and it's irresponsible to not say anything if guests are going to expected to leave if they want any food.
I've been to one wedding like that and it was awful, and all they needed to do was adjust the time and date to a mid-morning on a weekend and make it more of a relaxed affair with a buffet lunch which would have made a huge difference.
Instead they had the service at 4pm on a Friday meaning everyone had to take at least half a day off work, then when we got to the venue there were only four tables with no linen and about 24 seats for everyone to sit on. So you've got dozens left standing, including elderly relatives.
It was only then that anyone might have realised there was no proper meal as you'd expect with that timing and as this was at a golf club, quite some distance to go if you'd wanted some food. There also was no entertainment, not even some music playing from behind the bar. There was no nibbles, and eventually was some food put out about 10pm but it was only bread rolls, mesclun salad, ham and some seafood and on top of that it appeared they'd given the caterers numbers for about half the people there so that disappeared very quickly. Then of course, pretty much everyone that managed to grab some food had to eat standing up. Then there was the awful speech by the bridesmaid who implied she'd married down and they were expecting her to marry a lawyer or something.
We escaped as soon as we could and grabbed some food but really I don't understand why they did that because you don't have good memories and I think it would have been obvious that no one was enjoying themselves.
So they shouldn't do that, it's not that hard to work out a few compromises if needed instead of leaving guests without proper hosting.