There is no need for a big bank here, in Europe. If one of those regulated companies goes bankrupt the etf is still yours and transferable to a different institution.
War in Europe is the remaining risk factor, but if that happens it won't matter anyway.
If that's e.g. for a monthly $1000 investment, it means 1% of your savings is lost in fees each time. That'll be 1% that's not going into savings. If you end up with a million by some time, that small fee will have cost you 1% of that, which is $10k.
"It's just a cup of coffee" -> "that's a 10 000$ cup of coffee". But if you only save 200 a month, that 5% is 200k you've lost by the end.
One percent is often considered a reasonable cost ratio, but it's definitely worth considering what the real numbers are for a given option.