Add comment about using Throwable

src/Schema/ViewHelperFinder.php

@@ -91,6 +91,8 @@ private function findViewHelperFilesInPath(string $namespace, string $path): arr
             } catch (\InvalidArgumentException) {
                 // Just ignore this class
             } catch (\Throwable $t) {
+                // Catch all Throwables to mitigate technical debt of a ViewHelper
+                // and avoid aborting the whole generation
                 $this->lastErrors[] = $t->getMessage();
             }
         }