This sounds absolutely brutal. Maintenance issue during taxi, panel left open, two hours on the tarmac, then back to the gate and canceled. From there it just snowballed into one failure after another. Rebooked to EWR instead of LGA even though seats existed. Dirty hotel room that was basically unusable. No food vouchers. No check in access. Then being asked to pay $25 just to check in after all that.
What really stands out is how many chances Frontier had to make this better and just didn’t. Other airlines had seats. Other solutions existed. But it sounds like every decision was made to protect Frontier instead of helping the passenger. Turning a short flight into a 33 hour ordeal is wild.
Hard to blame anyone for walking away from an airline after something like this.