Again, US SOCOM didn't mind Humvees or DPVs in Afghanistan. Rather than be obstinate and use horses, or bicycles, or whatever, they begged and pleaded with the USAF to airlift in motorization so they could actually carry useful equipment, like Javelins, GVLLDs, M2HBs, and other cool stuff. That won't fit on a bicycle.
Maybe Spanish Army drivers just need remedial training. One dude wrecking a truck isn't all that telling.
And yes, it was probably common for paratroopers to be dropped miles off target...in 1945. Nowadays paratroopers are dropped on large flat things. Usually runways. They're pretty hard to miss, and in fact they aren't missed: Even the worst missed jumps in Panama or Grenada landed within a few hundred feet of the main targets. Having larger payload aircraft and smaller jump chalks sort of solved the problem by itself: with fewer planes dropping more paratroopers, at lower altitudes (around 400-600 feet), they tend to stay together pretty well.
You'd land in some weeds or a bit of marsh but that was about it. No one got blown into the Canal or the ocean or anything. Either way, soldiers can't really march much these days, after all, and they don't. They carry much weight to walk very far and the bulk of this weight is usually protective equipment (body armor) and weaponry, so they can't easily just ditch it all.
Missing a target by "many miles" means you simply wait for someone to pick you up and you don't participate in the fight, because moving a "many miles" with 100-120 lbs of ammunition just isn't an option. Especially if it's a C-130 full of dudes. Luckily we have computer aided inertial navigation and GPS these days, so you literally can't miss the jump target. You can plug in a lat/long coordinate at an airbase and hit the target within a few hundred feet if you don't have GPS, like they did in the '80's, '90's, and '00's with Combat Talons. But that was before GPS became universal on all platforms and the pathfinder job kinda fell to the wayside I guess. Nowadays maybe only Argentina or something flies like that and everyone else just uses GPS and maps to find where they need to go.
Certainly if you land at the wrong airport on the other side of the town you'll be stealing peoples' cars in the parking lot to go to the right airport. Why would you walk at all?
There's simply not much of a reason for paratroopers to have bicycles, unless they need to go somewhere within about 30 or 40 kilometers distance, immediately after landing at a airbase, and there aren't enough trucks and cars to steal. Then you can just fly the bikes in on a couple pallets. Pretty easy. It's so niche of a utility it's not worth much discussion beyond that, because most places you go to will have people who have cars to steal cars from.