That's just completely wrong. From the Honeywell manual for a Vista 20p (most other real alarms support similar zone types)

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Type 04 Interior Follower

• Assign to a zone covering an area such as a foyer, lobby, or hallway through which one must pass upon entry (to and from the keypad).
• Provides a delayed alarm (using the programmed entry 1 time) if the entry/exit zone is faulted first. Otherwise this zone type gives an instant alarm.

Type 10 Interior w/Delay

• Provides entry delay (using the programmed entry time), if tripped when the panel is armed in the Away mode.
• Entry Delay 1 begins whenever sensors in this zone are violated, regardless of whether or not an entry/exit delay zone was tripped first.