Why is it wrong to assign سُؤَالٌ the same template as قِيَامٌ?

Noun Patterns: Jāmid, Maṣdar, Mushtaq and 50 Basic-Triliteral Maṣdar Entries

• Their radical and vowel/long-vowel structures differ
• Suʾāl is only a particle
• Qiyām is a jāmid noun
• Neither has a morphological pattern