Currently the download all logs button for remote execution does not appear until every device has either succeeded or failed. If you run a remote execution on 300 devices and even one remains stuck in pending (even with retry for offline devices disabled), the button only becomes available after the entire job times out (which is 24hrs I believe).
It would be helpful to download logs for all devices that have finished so far. For devices still pending or not finished, the downloaded spreadsheet could simply mark that status in the Result column.
I know I can view results for each device manually while the job is running, but that is only practical for small remote execution jobs.