I'm the few longboarders out when it gets big

Today I went out and it was 4-6 feet with bigger sets at overhead. I've noticed this in my local break where it is usually 80% longboards. When the wave gets above 4 feet, there is less than 10% longboards. Everyone is on a smaller board. I was going to use my 7'4 funboard but glad I didn't because the paddle out was brutal and there was no way I'm going to be able to even get out or paddle for the steeper drops.
I'm thinking maybe I'm not using the right board? There must be a reason people stop bringing out the longboards? The wave was steep but it was still catchable with a longboard. Is it because most surfers prefer a smaller board or once it gets too big, you shouldn't be using a longboard? The board manufacturer for my board says the wave size is up to 6 feet. I felt it was okay when I angle the board on paddle + takeoff. I had plenty of rocker and didn't have any issue, probably only issue was my brain telling me not to go for it. Also it was breaking really cleanly and slow that I didn't have problems nor did I feel my board was slow.
I also had an issue today where I was really tired after my 2nd wave. Honestly I was scared for awhile I was the only longboarder and I sat at least 15 feet further out than the lineup. It was nerve wrecking seeing the giant sets rolling in. My stamina usually last me 1-2 hours of surf but today I was exhausted fast.
I'm thinking maybe I'm not using the right board? There must be a reason people stop bringing out the longboards? The wave was steep but it was still catchable with a longboard. Is it because most surfers prefer a smaller board or once it gets too big, you shouldn't be using a longboard? The board manufacturer for my board says the wave size is up to 6 feet. I felt it was okay when I angle the board on paddle + takeoff. I had plenty of rocker and didn't have any issue, probably only issue was my brain telling me not to go for it. Also it was breaking really cleanly and slow that I didn't have problems nor did I feel my board was slow.
I also had an issue today where I was really tired after my 2nd wave. Honestly I was scared for awhile I was the only longboarder and I sat at least 15 feet further out than the lineup. It was nerve wrecking seeing the giant sets rolling in. My stamina usually last me 1-2 hours of surf but today I was exhausted fast.