The rclone http remote is set up for reading a directory listing rather than a single file…
If you just want to upload those single files, then you could do it with a combination of curl and rclone, eg something like this
curl -s 'https://data.surveygizmo.com/reportsview/?key=99759-8644201-bf0d34524dfe164a5a3b826fb48d4f86&realtime=true' | rclone -v rcat remote:path/file.csv