For SSDs, where the time-to-read/write-full-capacity is typically much less than HDDs (both due to higher speed & lower capacity), it can be less of a poor decision. SSDs also have somewhat more advanced machinery for data integrity checking and slightly friendlier failure modes (e.g., the sectors "wear out" over time, but the firmware tends to warn you as that starts to happen, and you're not going to hit a sudden mechanical failure).