Its definitely a better option if any common property damage is assessed and rectified under the commitees watch so you know independently what the scope of works is and that it is professionally corrected. Otherwise their DIY fix up might be poor quality, short lasting, not be safe, affect your building insurance, you wont know who did it or what exactly was done or have warrantee claim paperwork and it sets a poor precedent. You pay for it then get reimbursed by the offender.